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JavaScript中检测数组的几种方式
检测一个对象是否为数组的方式有: Array.isArray() // true或false(es5) toString.call([]); // [object Array] arr.constructor; // Array() instanceof Array // true或false in ...
分类:编程语言   时间:2016-05-16 10:58:06    阅读次数:253
HZAU 18——Array C——————【贪心】
18: Array C Description Giving two integers and and two arrays and both with length , you should construct an array also with length which satisfied: ...
分类:其他好文   时间:2016-05-16 09:23:18    阅读次数:161
php - array 与 json操作
程序将打印出 : {“name”:”Eric”,”age”:23} 再看下面的例子: 程序将打印出 :["Eric",23] ...
分类:Web程序   时间:2016-05-16 01:55:57    阅读次数:172
Find Peak Element
A peak element is an element that is greater than its neighbors. Given an input array where num[i] ≠ num[i+1], find a peak element and return its inde ...
分类:其他好文   时间:2016-05-16 00:20:42    阅读次数:176
Search in Rotated Sorted Array
Suppose a sorted array is rotated at some pivot unknown to you beforehand. (i.e., 0 1 2 4 5 6 7 might become 4 5 6 7 0 1 2). You are given a target va ...
分类:其他好文   时间:2016-05-16 00:12:02    阅读次数:153
Find Minimum in Rotated Sorted Array
Suppose a sorted array is rotated at some pivot unknown to you beforehand. (i.e., 0 1 2 4 5 6 7 might become 4 5 6 7 0 1 2). Find the minimum element. ...
分类:其他好文   时间:2016-05-16 00:11:40    阅读次数:125
Binary Search 二分查找总结
Binary Search基本的复杂度为O(logn)。如果提示需要对O(n)的算法进行优化,非常可能就是二分,另外二分一般出现在排序数组或者变形后的排序数组(rotated array)当中。二分主要有两种,binary search on index(index上的二分)和binary sear ...
分类:其他好文   时间:2016-05-16 00:09:43    阅读次数:166
JavaScript进阶知识点(慕课)
JavaScript能做什么? 1.增强页面动态效果(如:下拉菜单、图片轮播、信息滚动等) 2.实现页面与用户之间的实时、动态交互(如:用户注册、登陆验证等) 一. 数组 var myarray=new Array(); 二. 函数 getDay() 返回星期,返回的是0-6的数字,0 表示星期天。 ...
分类:编程语言   时间:2016-05-15 21:37:45    阅读次数:284
华农校赛--G,用set比较大小,缩短时间复杂度
Array C Description Giving two integers and and two arrays and both with length , you should construct an array also with length which satisfied: 1.0≤ ...
分类:其他好文   时间:2016-05-15 21:27:00    阅读次数:264
260. Single Number III
Given an array of numbers nums, in which exactly two elements appear only once and all the other elements appear exactly twice. Find the two elements ...
分类:其他好文   时间:2016-05-15 21:23:56    阅读次数:192
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